【单选题】数据模型的三个组成部分是数据结构、数据操作和( )。
【单选题】数据模型的三个组成部分是数据结构、数据操作和_____。
【简答题】结构数据模型的三个组成部分是数据结构、数据操作和____。
【单选题】It can be inferred from the last paragraph that
A.
women are often involved in politics in Germany.
B.
in Germany, there are now some female leaders, including Merkel.
C.
Merkel becomes a chancellor because she is no longer a girl.
D.
it does need a lot to become a female chancellor in Germany.
【简答题】在Visual FoxPro中,相当于主关键字的索引是( )。 A) 主索引 B) 普通索引 C) 唯一索引 D) 排序索引
【简答题】在Visual FoxPro中,相当于主关键字的索引是A)主索引 B)普通索引 C)惟一索引 D)排序索引
【单选题】领导权力自发形成的过程中需具备的条件是()。
【单选题】All too often, the national dreams that drive politics ______ on wholly irrational character.
【单选题】在Visual FoxPro中,相当于主关键字的索引是( )。